This next piece of video really caught our eye. The hockey coach caught on camera tripping a young player. Sending him to the ice. Well, that coach is in court this morning. This week, I should say, now facing jail time. Abc's rob nelson has that story for us. Reporter:48-year-old martin tremblay walks into a courtroom this week for sentencing, fully expecting to walk out, with nothing more than a slap on the wrist. Instead, the peewee hockey coach is facing 15 days behind bars, all because of this. Watch as tremblay viciously trips a 13-year-old boy during what's supposed to be a symbol of sportsmanship, the postgame handshake after a game last summer. Instead, the boy goes down hard, breaking his wrist and taking a 10-year-old teammate down with him. That ice-cold attack now leading to cold justice, with a canadian judge handing down an even harsher sentence than the one prosecutors had prem recommended. You need to have control. Reporter: Tremblay's attorney says the outburst cost his client several construction contracts, volunteer jobs and even his marriage. But he says he will not be appealing the judge's decision. Put in years and years coaching hockey. That's all over. He's paid a heavy price. Reporter: This is not the first time parental unnecessary roughness has been caught on camera.Assistant football coach cory batero was charged with a misdemeanor in 2006, after attacking a 13-year-old player himself nia. Then, there was this little league brawl in georgia, where several fathers pummeled each other. As for tremblay, he'll likely be sentenced to anger management classes, as well. For "good morning america," rob nelson, abc news, new york.

This transcript has been automatically generated and may not be 100% accurate.

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